Explanation:
The given pair of functions f and g in which
( fog)(x)=x are inverse to eachother
Answer:
option 2 on ed
f(x)=2/x and g(x)=2/x
f(g(x))= f(2/x)= 2 /2/x (multiply the x on the top and bottom, the bottom cancels out)
You are then left with x
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